Lue keskustelun säännöt.
Mikromuovipaniikin lietsonta laukalla
08.04.2026 |
Suurin tutkimuksissa havaittujen mikromuovien lähde onkin tutkijoiden lateksihanskat!
https://www.sciencedaily.com/releases/2026/03/260329222938.htm
Scientists may have been unknowingly inflating microplastics pollution estimates, and the surprising source could be their own lab gloves. A University of Michigan study found that common nitrile and latex gloves release tiny particles called stearates, which closely resemble microplastics and can contaminate samples during testing. In some cases, this led to wildly exaggerated results, forcing researchers to track down the unexpected culprit.
No, eipä niiden mikromuovitutkimusten laatu muutenkaan ilmeisesti päätä huimaa:
EFSA (European Food Safety Authority), Barthélémy E, Cariou R, Castle L, Crebelli R, Di Consiglio E, Hemy Dumas T, Franz R, Grog K, Lambré C, Lampi E, Milana MR, Munoz Guajardo I, Pronk M, Rivière G, da Silva M, Tietz T, Tsochatzis E, Van Hoeck E, 2025. Literature review on micro- and nanoplastic release from food contact materials during their use. EFSA supporting publication 2025:22(10): EN-9733. 53 pp. doi:10.2903/sp.efsa.2025.EN-9733
Despite the large number of publications investigating the release of MNP (micro- and nanoplastics) from FCM (food contact materials), the available evidence concerning the characteristics and quantities of released MNP from FCM remains limited. Many publications are affected by methodological shortcomings in test conditions, in sample preparation, and by deficiencies in the reliability of analytical data, with the consequence of frequent misidentification and miscounting.
Kohua herättänyt "mikromuovia aivoissa!!" -tutkimuskin on saanut aika rankkaa kritiikkiä:
https://www.theguardian.com/environment/2026/jan/13/microplastics-human…
One of the team behind the letter was blunt. “The brain microplastic paper is a joke,” said Dr Dušan Materić, at the Helmholtz Centre for Environmental Research in Germany. “Fat is known to make false-positives for polyethylene. The brain has [approximately] 60% fat.” Materić and his colleagues suggested rising obesity levels could be an alternative explanation for the trend reported in the study.
Materić said: “That paper is really bad, and it is very explainable why it is wrong.” He thinks there are serious doubts over “more than half of the very high impact papers” reporting microplastics in biological tissue.
Kommentit (10)
Vau, lontoon murretta. Kyllä sä oot viisas
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Miten kumihanskat ovat MUOVIN lähde?
Tuskinpa ne hanskat pahemmin vaikkapa vesinäytteiden analysointiin vaikuttavat, joten aika rajallinen ongelma korkeintaan mitä tulee tutkimuksen laatuun.
Meissä kaikissa on mikromuovia joka aiheuttaa syöpiä tulehduksia tukoksia. Ihmiskunta kuolee mikromuoviin.
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Vierailija kirjoitti:
Miten kumihanskat ovat MUOVIN lähde?
Mekanismi on selittetty jutussa ihan selkeästi - kyse on hanskojen valmistuksessa käytetystä pintakäsittelyaineesta, joka siirtyy näytteisiin ja jota on hankala erottaa muovista.
Vierailija kirjoitti:
Tuskinpa ne hanskat pahemmin vaikkapa vesinäytteiden analysointiin vaikuttavat, joten aika rajallinen ongelma korkeintaan mitä tulee tutkimuksen laatuun.
Havaitut määrät eivät vaikuttaneet kovinkaan "aika rajallisilta":
While preparing the sampling surfaces, Clough followed standard practice and wore nitrile gloves. However, when she reviewed the results, the number of detected microplastics was thousands of times higher than expected.
...
Their experiments recreated typical lab conditions, such as a gloved hand touching filters, microscope slides, and other equipment used during analysis. Even these routine interactions transferred particles from the gloves to the testing surfaces.
On average, the gloves introduced around 2,000 false positive signals per square millimeter.
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Minulla on reikä mistä muovit tulee pihalle. Tai pyttyyn.
Vierailija kirjoitti:
Vierailija kirjoitti:
Tuskinpa ne hanskat pahemmin vaikkapa vesinäytteiden analysointiin vaikuttavat, joten aika rajallinen ongelma korkeintaan mitä tulee tutkimuksen laatuun.
Havaitut määrät eivät vaikuttaneet kovinkaan "aika rajallisilta":
While preparing the sampling surfaces, Clough followed standard practice and wore nitrile gloves. However, when she reviewed the results, the number of detected microplastics was thousands of times higher than expected.
...
Their experiments recreated typical lab conditions, such as a gloved hand touching filters, microscope slides, and other equipment used during analysis. Even these routine interactions transferred particles from the gloves to the testing surfaces.
On average, the gloves introduced around 2,000 false positive signals per square millimeter.
Höpö höpö. Harva sormiaan sinne pienen astian sisään saa edes mahtumaan, joissa nestemäiset näytteet tyypillisesti analysoidaan optisesti.
Jotenkin en ole yllättynyt.